r/2-1=-4

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Solution for r/2-1=-4 equation: 



r/2-1=-4

We move all terms to the left:

r/2-1-(-4)=0

We add all the numbers together, and all the variables

r/2+3=0

We multiply all the terms by the denominator


r+3*2=0

We add all the numbers together, and all the variables

r+6=0

We move all terms containing r to the left, all other terms to the right

r=-6

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